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# android.speech.tts

## Interfaces

SynthesisCallback | A callback to return speech data synthesized by a text to speech engine.
TextToSpeech.OnInitListener | Interface definition of a callback to be invoked indicating the completion of the TextToSpeech engine initialization.
TextToSpeech.OnUtteranceCompletedListener | This interface is deprecated. Use `UtteranceProgressListener` instead.

## Classes

SynthesisRequest | Contains data required by engines to synthesize speech.
TextToSpeech | Synthesizes speech from text for immediate playback or to create a sound file.
TextToSpeech.Engine | Constants and parameter names for controlling text-to-speech.
TextToSpeech.EngineInfo | Information about an installed text-to-speech engine.
TextToSpeechService | Abstract base class for TTS engine implementations.
UtteranceProgressListener | Listener for events relating to the progress of an utterance through the synthesis queue.
Voice | Characteristics and features of a Text-To-Speech Voice.

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